Double species Bose-Einstein condensate with tunable interspecies interactions
Authors: Thalhammer G., Barontini G., De Sarlo L., Catani J., Minardi F., Inguscio M.
Autors Affiliation: LENS – European Laboratory for Non-Linear Spectroscopy and Dipartimento di Fisica, Universita di Firenze, via N. Carrara 1, I-50019 Sesto Fiorentino – Firenze, Italy;
CNR-INFM, via G. Sansone 1, I-50019 Sesto Fiorentino – Firenze, Italy;
INFN, via G. Sansone 1, I-50019 Sesto Fiorentino – Firenze, Italy
Abstract: We produce Bose-Einstein condensates of two different species, 87 Rb and 41 K, in an optical dipole trap in proximity of interspecies Feshbach resonances. We discover and characterize two Feshbach resonances, located around 35 and 79 G, by observing the three-body losses and the elastic cross section. The narrower resonance is exploited to create a double species condensate with tunable interactions. Our system opens the way to the exploration of double species Mott insulators and, more in general, of the quantum phase
diagram of the two-species Bose-Hubbard model.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 100 (21) Pages from: 210402 to: 210402
KeyWords: Electric insulators; Hubbard model; Optical systems; Phase diagrams; Resonance, Interspecies Feshbach resonances; Tunable interactions; Tunable interspecies interactions, Bose-Einstein condensationDOI: 10.1103/PhysRevLett.100.210402Citations: 331data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2022-12-04References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here